Sizing device for winding machines



' Oct. 31,1944. 1 v G. L. BOYCE ETAL\ v 2,361,428

SIZING DEVICE FOR WINDING MACHINE/S Filed June 6, 1942 INVENTOR.EHFF'IELD L. EUYCE BY EHF'L Fl 'EHETELLHN ATTO Patented Oct. 31,1944

umrso STATES PATENT FFlCE SIZING DEVICE FOR MACHINES Garfield L. Boyce,Ridley Park, Pa., and Carl A.

Castellan,

Wilmington,

Del., assignors to American Viscose Corporation, gton, Del a corporationof Delaware Application June 6, 1942, Serial No. 446,154 12 Claims. (Cl.242-37) This invention relates to winding machines and more particularlyto an improved device for arresting the operation of the machine whenthe which swings away from the spindle as the wound package increases insize. The form of device for stopping the winding machine generallyemployed with this type of winding machine and shown in the Wardwellpatent has the disadvantages of being somewhat slow-acting and of in---creasing the pressure of the thread guide against the surface of thewinding as the package approaches the predetermined size to which thestopping device has been set. The slow-acting characteristic of the.device results in wound packages of non-uniform weight but, what is moreimportant, the increased pressure on the package during actuation of thestopping device deforms the wound package.

Itis an object of the invention to provide a novel form of device forautomatically stopping the winding when the package reaches apredetermined size which device avoids the exertion of undue pressure ofthe guide. against the package. Another object is to-provide such adevice which. is simple in character and which may be readily attachedto standard machines without altei'lngthe structure thereof. Anotherobject is to provide such a device which is adapted to cooperate withthe mechanism for stopping the device automatically upon breakage orexhaustion of the supply of the yarn or strand .being wound. A furtherobject is to provide a device which is adjustable in character so that apackage of any desired size may be obtained upon the machine or machinesto which the attachment is applied.

A further object is to provide an improvement in the type of stoppingdevice disclosed in the United States patent application of Schrader andSpengler, senNo. 443,294, filed May 16, 1942. In

that application, no provision was made for assuring that the machinewould not operate if the operator in starting a fresh cop tube failed tore-set the impact member in its initial rest position in the path of thetraverse frame. While bears against the surface of the winding, and

the weight of the impact member in some cases is sufllcient to hold thearm 33 in the way of the projection 38 of the wheel 35 after thememberhas fallen to stop the machine, yet the use of an excessivelyheavy impact member with line denier yarns tends to produce defects,such as shiners and breaks. It is an object of this invention to modifythe "sizing stop device of the above-mentioned application so that thearm 33 is certain to be held in stopping position by the impact memberafter it has fallen and to 1 provide an arrangement for accomplishingthis without requiring an excessively heavy impact member. Other objectsand advantageswill appear from the drawing and description thereof. 1

In the drawing, illustrative of the invention,

Figure 1 is a front elevational view of a conventional type of windingmachine showing the present invention applied thereto.

Figure 2 is a side elevatlonal view of the wind- 4 ing machine shown inFigure 1. p

While the invention will be described hereinafter in relation to aparticular type of semen-- tional winding machine, it is to beunderstood that it is not limited to application thereto. in thedescription, the conventional parts of the winding machine will first bedescribed and this will be followed by a description of the parts whichconstitute the present invention.

Referring to the drawing, reference numeral .2 desi nates the fixed mainframe of the machine.

At the top of frame 2, a rotating spindle 3 is joumaled in suitablebearings and is adapted tends in a direction parallel to the windingspin'--' dle 3. This shaft 6 is connected to the spindle and is driventherefrom by suitable means, such as gears, a belt and pulleys, orsprockets and chain (not shown). helical grooved cam i for rotationtherewith.

A traverse frame 8 is pivotally mounted upon the shaft 6 upon which itis suitably balanced such as by the counterweight 8. This traverse frame8 is provided with a. backing plate I! and a porcelain bailll may be'rotatably supported on a wire i2 whose depending legs adjacent the endsof the bail are suitably fastened within recesses in the plate It bymeans of set screws IS. The traverse frame 8 is constructed to pro videa horizontal groove through which a traverse bar I may reciprocate. Athread guide The shaft 8 also carries a l5, whose upper end is adaptedto press lightly against the package being wound is fastened to itgradually swings the traverse frame 3 away fromthe spindle 3 and .thetraverse frame is prevented from swinging back toward the spindle bymeans of a lever i3 having oneend fastened thereto at I3 and the otherend engaging within a groove formed underneath a segment 23 which ispivotally fastened to the main frame 2 at 2i.

The operation of. the winding machine is controlled by a starting leveror handle 22, mounted on one end of, a rotatable rod 23, supported inbearings at the topof the main frame 2. The opposite end of the rod 23carries means for 'operating a clutch or similar device (not shown) tocontrol the' operation of the spindle 3 and the other parts ofthemachine driven therefrom. A lever 24 is mounted adjacent the startinglever 22 on the-rod 23 so that it rocks therewith. One end of lever 24is normally blessed in a counterclockwise direction by a spring 25fastenedto the frame 2 and is provided with a braking means 23 which isadapted to press against the spindle 3 and to stop the rotation thereofwhen the lever 22 is in the stop position in which position the clutchor other devicefor operating thespindle 3 is disengaged. The other endof the lever 24 is formed as a curved arm having a book 21 at its end.When the starting lever 22 is in operating position, .in which theclutch is engaged with the spindle '3 and the brake is liftedtherefrom(as shown in Figure 1), the hook 21 engages another hook 28 secured toor constituting part of the pivoted segment 23. The. machine may bemaintained in running position by setting these hooks 21 and 28 inopposition to the spring 25 which otherwise would tend to set the brakeand to swing the starting lever 22 into the stop in the drawing, it isfastened to the frame 8 by.

over the porcelain bail II and through the travride upon the yarn andalong which the yarn may traverse to a certain extent. The extension 31maybe bent at the end to form a hook 33 to prevent the yarnfromaccidentally slip- Ding out of engagement therewith. The first arm33 is 01' such length and the entire detector is mounted for independentand free pivotal motion with respect to the segment 23. This arm 39 maybe pivoted upon the same pivot 32 as the end breakage detector 3| thoughthis is,

not essential. This arm 39 is provided with one projection 43 which isadapted to serve as a resting stop to support the arm in an uprightposition upon the segment 23 at an angle slightly inclined from thevertical (as shown in Figure 1.

which shows the machine as the package approaches full size). The amountof this angle is preferably as small as is consistent with thevibrationinherent in the operation of the machine or associated withneighboring machines.

- The free end of the arm 39 is provided with a second projection 4|which is adapted to strike the arm 33 of the end breakage detector 3|when the upwardly extending arm 39 is swung out of its resting position.The weight of arm 39 may vary widely, being made heavier whenoperating'with greater tension in the course of yarn approaching thepackage. If desired, the-projection 4lmay be threaded to receiveinterchangeable internallythreaded sleeves of various weights similar tothe sleeve 44 described hereinbelow.

This sizing stop arm or impact member 39 is adapted to be operated uponengagement by any part of the traverse frame 8. Preferably, the partwhich engages the stop arm 39 is readily adjustable. For example, anL-shaped member 42 may have one leg 43 provided with threads adapting itto receive an internally threaded sleeve 44 and a lock nut '43 to lockit in any desired position along the length of the threaded leg 43. ThisL-shaped member may be fastened toany part of the traverse frame 8. Asshown means of one of the set screws employed in holding the wire l2 forthe porcelain bail- I I. I Besides the adjustment that is possible bymerely screwing the sleeve 44 to a different position, an adjustment maybe accomplished in extreme cases by replacing the sleeve itself with asleeve of longer or shorter length The arm 39 may be provided with aweight 43 adapted to screw on to the upper end of the arm so that it maybe replaced by other sizes of weights. The stop initiating arm 33 ispivotally mounted at 41 on the pivotal mounting 48 to which the otherarm 34 of the end breakage detector is fixedly secured. Ordinarily, thearm 33 rests against the screw 49 upon the pivotal mounting .43 of theend breakage detector 34 so that it is in the position shown inFigure 1. A J-shaped stop member 33 is secured to the frame 2 in such amanner as-to limit the clockwise motion of the arm 33 so that. this armcan not ride freely over the projections 33 of the wheel 33 once it hasbeen thrown into engagement therewith.

device 3! is so balanced that upon breakage of the yarn, the deviceswings in a clockwisedirection tobring-arm 33 into thepath of theproiections 33 upon the rotating wheel '33 which in 'turn forces thesegment 23 in a counterclockwise direction sumciently to release the twohooks 21 and 23 and thereby permit the spring 23 to throw thestartinglever 22 into the stop position to apply thebrake and disengage theclutch.

"Theparts oithe machine so far described are conventional and constituteno essential part of As will appear from the drawing, the arm 33 ismovable into stop initiating position by either the breakage of the yarn(resulting in swinging of arm 34 and hence of. arm 33 by the swinging ofthe screw 43 on the pivotal mounting 43) or by the impact of theextension 4| against the arm 33 as a result of the displacement of theweighted arm 33 from its rest position by the projection 43 extendingfrom the traverse -i'rame. The stop mechanism is so constructed thatshould the operator of the machine start it without resetting the arm 33to its proper rest position as this invention except as will appearhereinafter. shown in Figure 1, the weight of the arm 33 is Inaccordance with this'inventign. an i 33 suflicienttokeep the arm 33 inencasement with assume the projection a oi the wheel as as determined bythe stop ill on. the frame, so that upon release of the lever 22 by theoperator the machine automatically stops.

As will be readily apparent, the impact member of the presentinvention-acts upon the arm 33 without the intermediationof the endbreakage detector arm -34 and its action has comparatively littleinfluence upon the tension exerted upon the yarn by the extension 31 ofthe end breakage detector arm 3|. The weight 46 may be relatively smalland yet be adequate to Y maintain the arm 33 inengagement with theprojections to of the wheel 35 since it need only counter-balance thearm 83 instead of the whole of the end breakage detector assemblypivotally I ment, means for stopping said machine, a memmounted on thesegment in the manner shown in the application of Schrader et a1previously referred to.

In the present specification, and claims, the term "package" is used, ina general sense to indicate any form of wound mass and the term yarn" isintended to designate any kind of strand material whether textile orotherwise.

While a preferred embodiment of the invention has been disclosed, it isto be understood that such changes and variations may be made as do notdepart from the spirit and scope-of the invention as defined by theappended claims.

We claim:

1. In a winding machine, a traverse frame,

means forstopping said: machine automatically,

a pivoted member arranged to be set in aposition of rest approaching aposition ofgravita tional instability in the path of-an element securedto saidtraverse frame, said member being .arranged to move automaticallyand independently to a third position to initiate the operation or saidstopping means upon displacement from its rest position. through-itsunstable position, means for swinging said traverse frame as the windingproceeds to cause said element to engage said member and to displace itfrom'its rest position to its unstable position when a predeterminedsize of winding has been'obtained, and means for holding said impactmember in ber having an arm'movable into engagement with said element toinitiate the operation of said stopping means, a pivoted impact'memberhaving a weight at one side and an extension on the other side of thepivot movable from a rest position with the weight uppermost througha'position of instability to cause the extension to strike said arm toeffect movement thereof into engagement with; said element, said impactmember being arranged in its rest position in the path of swinging ofsaid traverse frame so that it is engaged thereby and moved into strik-.

ing position when a predetermined size of winding is obtained, and meansfor limiting the movement of the arm when struck by the impact member tokeep the arm in engagement with the rotatable element until re-set inits initial position of rest.

5. In a winding machine, a winding spindle, a traverse frame, means forpivotally swinging said traverse frame from said spindle as the windingproceeds, means for stopping said machine, a

pivotally suspended member having an arm movable into engagement withsaid element to initiate the operation of said stopping means, apivotally mounted impact member having a weight at one side and anextension on the other side of the pivot movable from a rest positionwith the weight uppermost to a position of instability to cause theextension to strike said arm to effect movement thereof into engagementstopping means initiating position until re-set in its initial positionof rest.

1 2. In a winding machine, a winding spindle, a rotatable element, meansfor rotating said element, means for stopping-said machine, a memberhaving an arm movable irito engagement with said element to initiate theoperation 0! 'said stopping means, an impact member movable from a restposition to a; self-propelled striking engagement with said arm toeffect movement of said arm intoengagement with said element, meansmovable; by the growth of the package being wound-on said spindle intoengagement" with said impact member to move it from its rest positioninto its self-propelled striking position, and means for limiting themovement of the arm when struck by the impact member to keep the arm inengagement with the rotatable element until re-set in its initialposition of rest.

3. In a winding machine, a winding spindle, a rotatable element, meansfor rotating said element, means for stopping said machine, a pivotallysuspended member having an arm movable into engagement with said elementto initiate the operation of said stopping means, a pivotally mountedmember having a weight at one side and an extension on the other side ofthe pivot movable from a rest position with the weight uppermost to aposition of instability to with said element, said second member beingarranged in its rest position in the path of swinging of said traverseframe so that it is engaged thereby and moved into striking positionwhen a predetermined size of winding is obtained, and

means for limiting the movement oil the arm when struck by the impactmember to keep the arm in engagement with the rotatable element .untilre-set in its initial position ofrest.

6. In a winding machine, a winding spindle, a rotatable element, meansfor rotating said element, means for stopping said machine, a memberhaving an arm pivotallymounted thereon movable into engagement with saidelement to initiate said stopping means and having a second arm inengagement with a running course of yarn, said member being normallywithheld from movement to initiate operation of the stop means by saidrunning course, of yarn and being constructed to move 0! its own weightinto engagement with said element to initiate operation of the stopmeans upon breakage or termination of said yarn, an impact membermovable irom a rest position into a self-propelled striking engagementwith the first arm to eflect movement thereof into engagement with saidelement, means movable by the growth of the package being wound on'saidspindle into engagement:

with said impact member to move it from its rest position into itsself-propelled striking position.

'7. In a winding machine, a winding spindle, a traverse frame, means forpivotally swinging said frame from saidspindle as the winding proceeds,a rotatable element, means for rotating said element, 'means forstopping said machine, a pivotally suspended member having an armpivotally mounted thereon movable into engagement with said element toinitiate the operation of said stopping means and having a second arm inengagement with the running course of the yarn, said member beingnormally withheld from movement to initiate operation of the stop meansby said running course of yarn and being constructed to move of its ownweight into en agement with said element to initiate operation of thestop means upon breakage or termination w of said yarn, a pivotallymounted impact member movable from a rest position to a self-propelledstriking engagement with theflrst arm to eflect movement thereof intoengagement with said element, said impact member being arranged in itsrest position in .the path of swinging of said traverse frame so that itis engaged thereby and moved into its self-propelled striking positionwhen a predetermined size of winding is obtained, and means for limitingthe movement oiv the arm when struck'by the impact member to keep thearm in engagement with the rotatable element until re-set in its initialposition of rest.

8. In a winding machine, a traverse frame, means for pivotally swingingsaid traverse frame as the winding proceeds, means for stopping saidmachine, means responsive to the breakage of the yarn being woundforinitiating said stop means, and movable impact means for initiating saidstopping means having an inactive position during normal windingoperation in which a part thereof lies inthe path of said traverseframe, said impact means being arranged to be set off for automatic,independent motion into stopping means initiating position upon contactof said part thereof by the traverse frame when a predetermined size ofpackage has been obtained, and means for holding said impact member instopping means initiating position until reset in matic independentmotion upon displacement through its position of instability to a thirdpositionto initiate operation 0! the stopping means, and means forholding said impact member in stopping means initiating position untilre-set in its initial position of rest.

10. In a winding machine, a traverse frame, means for stopping saidmachine automatically.

I an impact member arrangedto be set in a position of rest in the pathof an element of said traverse frame and to be displaced through aposition.

of instability to a position of initiating the operation of saidstopping means, the member being mounted for automatic and independentmotion to stopping means initiating position upon dis-' placement to itsposition of instability, means for swinging said traverse frame as thewindingv proceeds to cause said element to displace said member from itsrest position to its unstable position when a predetermined size ofwinding has been obtained, and means for holding said impact member instopping means initiating position approaching a position ofgravitational instability in the path of an element secured to saidtraverse frame, said member being arranged tomove automatically andindependently to a third position to initiate the operation of saidstopping means upon displacement from its rest position to its unstableposition, means for swinging said traverse frame as the winding proceedsto cause said element to displace said member from its restpositionthrough its unstable position when a predetermined size ofwinding has been obtraverse frame and to be displaced to a position ofgravitational instability by a predetermined extent oi swing of saidtraverse frame and thereupon to fall and strike said breakage responsivemeansto initiate said stopping means, and means for holding said impactmember in stopping means initiating position untilre-set in its initialposition of rest.

- GARFIELD L. BOYCE. CARL A. CABTELLAR.

